I'm using ArcGIS 10.1 for Server and trying to get a FindTask working via this sample and the only difference between my code and the samples that I can see is that the sample data has a find operation enabled.

I can't find in my server manager where to enable this. And is it even necessary? Right now the search isn't returning any results.

EDIT:
if you wanna to check if is it arcgis server problem or your application you can always connect to esri test server (lik this in example) and check is it working OK. If its working OK - you have to change in arcgis server, if not - you made mistake in code so post your code here..